I have a ford trac lock unit i bought for my 9 inch and a set of 31 spline truck axles with new torino bearings and wheel studs. The bolt pattern is 5x5.5. The trac lok is 31 spline also. I came across a D60 with a 4.10 and posi for 50bucks so i dont have a use for the 9 inch stuff. 300 for both axles and trac lok or make an offer for what you need.